Honda CRF450R 2009 Service Manual page 106

MAINTENANCE
Upper: Green Install the upper drive chain roller with the • 1 "mar1<
facing away from the frame.
Install and lighten a new drive chain upper boll to the
specified torque.
TORQUE : 12 N'm (1 .2 kgf·m, 9lbHt)
Lower. Black Install the lower drive chain foller with the slepped side
facing out as shown.
Install and lighten the drive chain lower roller bolt and
nul to the specified torque.
TORQUE : 12 N'm (1.2 kgf-m, 9lbHt)
After '15
Inspect the drive chain rollers for excessive wear or
binding.
Measure the upper and lower drive chain rollers 0.0.
SERVICE LIM IT: Upper : 33 mm (1 .3 in)
Lower: 31 mm (1.2 in)
Replace the drive chain roller if necessary.
upper: Groen
Install the upper drive chain roller with the -, -mark
facing away from the frame.
Install and lighten a new drive chain upper bolt to the
specified torque.
TORQUE:12 N'm (1 .2 kgf·m , 9lbHt)
Lower: Black Install the lower drive chain roller with the stepped side
facing out as shown.
Install and tighten the drive chain lower roller nut to the
specified torque.
TORQUE: 12 N'm (1.2 kgf'm , 9lbHt)
DRIVE/DRIVEN SPROCKET
UPPER:
~'" UPPE~
BOLT
....
,
MARK
CHAIN ROLLER
STEPPED SIDE
CHAIN ROLLER
Inspect the drive and driven sprocket teeth for wear or
r - - - - - - - - - - - - - - - - - - - ,
4·26
damage. replace them
jf
necessary.
Never use a new drive chain on worn sprockets.
Both chain and sprockets must
be
in good condition, or
the new replacement chain will wear rapidly.
NORMAL